Lacey dragged a chair and placed it beside Lennon. She took a piece of white paper with her left hand and picked up a ballpoint pen with her right hand. She quickly wrote down the problem-solving process, and said as she wrote: “Brother, you can first make an auxiliary line, you can get two similar triangles, then make a perpendicular line, and solve an equation based on the vertical radius theorem of a circle… …”
Lennon’s closed mind was suddenly opened. He held Lacey’s hand and didn’t let her write further. He said, “I figured it out.”
Lacey asked again: “What about the penultimate question, brother, will you do it now?”
No.
Lennon only understood the penultimate question. As for the penultimate question, it is still beyond his ability.
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